核磁测井资料在大庆油田储层评价中的应用

Application of NMR logging data on reservoir evaluation in Daqing oilfield

核磁共振测井可以提供与矿物成分无关的孔隙度、孔隙度分布、泥质束缚水体积、毛管束缚水体积、自由流体体积和渗透率等十分丰富的地层信息。通过深入研究P型核磁测井数据处理方法,在此基础上编制了核磁测井数据处理软件,结合相应的常规测井资料,对大庆油田实际的核磁测井资料进行了综合解释。结果表明,核磁测井数据的应用可以增强大庆油田储层流体性质评价的可靠性,修正常规测井方法在复杂储层的评价问题中的一些解释失误。

NMR logging can provide abundant stratigraphical information such as porosity,porosity distribution,mud bound water volume,capillary bound water volume,free fluid volume and permeability.Through the study of the data processing method of MRIL_Prime,the authors establish a data software of MRIL_Prime to process the practical data of Daqing oilfiled and to interpret the well logging data,combined with the corresponding conventional logging data.The results show that the application of NMR logging data can enhance the reliability of the evaluation on the reservoir liquid property and modify some interpretation mistakes in complex reservoir evaluation by conventional logging in Daqing oilfield.